General view

Electromagnetica S 552 A

Electronica · 1955

Year
1955
Decade
1950s
Category
Radio
Type
Radio receivers
Documentation score
2/5
Last edited
03 OCT 2026

Specifications

Tubes
ECH42, EAF42, EAF42, EL41, AZ41, EM80
Wavebands
LW, MW, SW1, SW2
Sensitivity
LW, MW 90 µV; SW1, SW2 150 µV
Selectivity
20 dB
Audio frequency response
50–3500 Hz
Output power
1.75 W
Design / kits
Hungarian kits
Power supply
110 / 127 / 150 / 220 V AC, 50 Hz
Power consumption
50 VA

Sources: [1]

Description

The Electromagnetica S 552 A is a mains-powered tube radio receiver made in Bucharest by Radio Popular, the factory that became Electronica in 1960 [1]. It was assembled from kits imported from Hungary [1].

The table gives it together with the Armonia S 561 A; only the Electromagnetica has the EM80 magic-eye tuning indicator [1].

The book lists it among the receivers produced at Radio Popular. It also notes that in 1954–1956 the Electromagnetica works produced five types of radio receivers, until Radio Popular could meet the demand; in 1956 that production line was moved to Radio Popular [1].

In the source table, sensitivity is given for 50 mW output, selectivity at 1 MHz for ±10 kHz detuning, the audio frequency response at −6 dB relative to 400 Hz, and output power at 10% distortion [1].

Schematics

No schematics available yet.

Documents

No documents available yet.

References

  1. [1]D. F. Lăzăroiu, N. Millea et al. – „Electronica românească. O istorie trăită”, vol. I, AGIR, section II.2 „Fabrica Radio Popular, 1948–1959”, p. 109 and annex II.2.5 „Lista receptoarelor produse la Radio Popular între 1948–1959”, pp. 121–123